extern unsigned int sdr_ltmap, sdr_ltmap_notex;
-extern ExSelection exsel_grab, exsel_hover;
+extern ExSelection exsel_active; // active (info/interact) exhibit
+extern ExSelection exsel_grab_left, exsel_grab_right; // grabbed on each hand
+extern ExSelection exsel_hover; // hover
extern int fpexcept_enabled; // int so that C modules may fwd-delcare and use it